CN102207194A - Method for controlling AMT (automatic transmission) clutch brake - Google Patents
Method for controlling AMT (automatic transmission) clutch brake Download PDFInfo
- Publication number
- CN102207194A CN102207194A CN2011100673027A CN201110067302A CN102207194A CN 102207194 A CN102207194 A CN 102207194A CN 2011100673027 A CN2011100673027 A CN 2011100673027A CN 201110067302 A CN201110067302 A CN 201110067302A CN 102207194 A CN102207194 A CN 102207194A
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- brake
- clutch
- engine speed
- time
- motor
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a method for controlling an AMT (automatic transmission) clutch brake. Two parameters of brake signal and rotation speed of a motor are added to control a clutch for the method; when in heavy brake, the clutch is separated when the rotation speed of the motor is higher; when in light brake or no touch on the brake, the clutch is separated when the rotation speed of the motor is lower, namely the heavier the brake is, the earlier the brake is separated; the lighter the brake is, the latter the brake is separated; and the rotation speed of the motor is in proportion to weight degree of brake when the clutch is separated. According to the invention, through setting different rotation speeds of the motor, the clutch can be controlled according to the weight of the brake, thus the issue of stalling of engine caused by the over slow separation of the clutch in the heavy brake is solved, and simultaneously the control of the clutch in no touch on the brake is not influenced.
Description
Technical field
The invention belongs to automobile AMT(Automatic Mechanical Transmission, electric-controlled mechanical automatic speed transmission) the control system technical field, be specifically related to the controlling method of a kind of driver clutch when heavily touching on the brake.
Technical background
AMT automatic transmission car is to have installed clutch, gear-selecting and shifting executing mechanism on manual transmission additional, and the gear shift action is selected in instruction automatically according to the TCU controller.Generally, when the driver braked, clutch was to judge according to the speed of a motor vehicle and accelerator open degree size, when reaching the gear shift requirement, just declutched, and interrupted engine power, avoided putting out engine misses.The driver is in brake and not brake situation, and the control method of clutch is the same.
Generally when the driver gently touches on the brake, because similar in engine speed, speed of a motor vehicle decrease speed and the situation about not touching on the brake, clutch has sufficient time to separation, and engine can not stop working.But when hard braking, because engine speed, speed of a motor vehicle decrease speed can occur having little time to separate the situation that makes engine misses because of clutch than generally fast a lot.
Summary of the invention
The object of the present invention is to provide a kind of AMT clutch brake control method, solve AMT hard braking engine misses problem.
For realizing above purpose, the present invention by the following technical solutions:
This method increases brake signal, two parameter solenoidoperated cluthes of engine speed.When hard braking, clutch just begins to separate when engine speed is higher; When light brake or when not touching on the brake, clutch begins to separate when engine speed is low.I.e. brake is heavy more, and clutch separation more early; It is light more to brake, and clutch separation is late more.Engine speed size during clutch separation is directly proportional with the brake light and heavy degree.
Concrete grammar is to adopt light brake and two kinds of control methods of hard braking to control to clutch, when acceleration less than-1 m/s
2The time, be made as hard braking, if when this moment, engine speed dropped to 3000rpm, solenoidoperated cluthes begin to separate, after getting off the brakes, solenoidoperated cluthes engage; When acceleration greater than-1 m/s
2The time, be made as light brake, if when this moment, engine speed dropped to 1700rpm, solenoidoperated cluthes begin to separate, after getting off the brakes, solenoidoperated cluthes engage.
The present invention is by arranging different engine speed, and clutch can be controlled according to the weight of brake, thus when having solved hard braking because clutch separation causes the engine misses problem excessively slowly, do not affect again the control of clutch when not touching on the brake simultaneously.
Description of drawings
Fig. 1 is the logic chart that clutch separates according to the brake weight;
Fig. 2 is the schematic representation that clutch is controlled according to engine speed.
Embodiment
In order to understand better control logic scheme of the present invention and the specific embodiment, should be by reference to the accompanying drawings referring to following detailed description.
Fig. 1 logic chart that to be clutch control according to the brake weight, the brake light and heavy degree with acceleration represent (accelerate brief acceleration on the occasion of, the deceleration brief acceleration is negative value):
1) when acceleration less than-1 m/s
2The time, the expression brake is heavier, enters the hard braking controlling method, and clutch is controlled according to engine speed.Namely in order to avoid engine misses, when engine speed dropped to setting value, clutch began to separate.
2) when acceleration greater than-1 m/s
2The time, expression brake is lighter, enters conventional controlling method (gently brake or do not have brake control).Promptly control according to the speed of a motor vehicle, throttle size; As long as motor is not flame-out, clutch is in bonding state all the time.
Fig. 2 is the schematic representation that clutch is controlled according to engine speed:
1) the hard braking operating mode is, full throttle makes engine speed rise to 6000rpm, accelerator releasing then, and hard braking immediately, and the brake acceleration is less than-1 m/s
2When engine speed dropped to 3000rpm, clutch began to separate.After getting off the brakes, clutch engages.
2) operating mode of gently braking is, full throttle makes engine speed rise to 6000rpm, accelerator releasing then, and gently touch on the brake, the brake acceleration is greater than-1 m/s
2When engine speed dropped to 1700rpm, clutch began to separate.After getting off the brakes, clutch engages.
The present invention has increased the hard braking controlling method on the controlling method of conventional clutch, according to engine speed, and cut-off clutch as early as possible, thus solved hard braking engine misses problem.
Protection scope of the present invention is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and do not depart from the scope of the present invention and spirit the present invention.If these changes and distortion belong in the scope of claim of the present invention and equivalent technologies thereof, then the intent of the present invention also comprises these changes and is out of shape interior.
Claims (2)
1. AMT clutch brake control method is characterized in that: described method adopts light brake and two kinds of control methods of hard braking to control to clutch, increase brake signal, two parameters of engine speed;
1) when acceleration less than-1 m/s
2The time, the expression brake is heavier, enters the hard braking controlling method, and clutch is controlled according to engine speed, and promptly in order to avoid engine misses, when engine speed dropped to setting value, clutch began to separate;
2) when acceleration greater than-1 m/s
2The time, expression brake is lighter, enters conventional controlling method and promptly gently brakes or do not have brake control, promptly controls according to the speed of a motor vehicle, throttle size; As long as motor is not flame-out, clutch is in bonding state all the time.
2. AMT clutch brake control method according to claim 1 is characterized in that: when acceleration less than-1 m/s
2The time, being made as hard braking, this moment, solenoidoperated cluthes began to separate when dropping to 3000rpm as if engine speed, and after getting off the brakes, solenoidoperated cluthes engage; When acceleration greater than-1 m/s
2The time, being made as light brake, this moment, solenoidoperated cluthes began to separate when dropping to 1700rpm as if engine speed, and after getting off the brakes, solenoidoperated cluthes engage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100673027A CN102207194A (en) | 2011-03-21 | 2011-03-21 | Method for controlling AMT (automatic transmission) clutch brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100673027A CN102207194A (en) | 2011-03-21 | 2011-03-21 | Method for controlling AMT (automatic transmission) clutch brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207194A true CN102207194A (en) | 2011-10-05 |
Family
ID=44696178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100673027A Pending CN102207194A (en) | 2011-03-21 | 2011-03-21 | Method for controlling AMT (automatic transmission) clutch brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102207194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370764A (en) * | 2014-08-29 | 2016-03-02 | 上海汽车集团股份有限公司 | Control method and device for dual-clutch automatic transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813940A (en) * | 1996-05-23 | 1998-09-29 | Volkswagen Ag | Transmission clutch control arrangement |
| US6212458B1 (en) * | 1999-05-10 | 2001-04-03 | General Motors Corporation | Adaptive brake compensation for grade braking |
| US20050020403A1 (en) * | 2003-07-22 | 2005-01-27 | Toyota Jidosha Kabushiki Kaisha | Vehicle take-off control apparatus and method |
| CN101201101A (en) * | 2006-12-14 | 2008-06-18 | 比亚迪股份有限公司 | AMT vehicle gear-shift mechanism with shift point correcting function and correcting method thereof |
| CN101342901A (en) * | 2007-07-13 | 2009-01-14 | 现代自动车株式会社 | Method for controlling idle stop mode in hybrid electric vehicle |
| CN101622476A (en) * | 2007-03-02 | 2010-01-06 | Zf腓德烈斯哈芬股份公司 | The method that is used for the power train of controller motor-car |
-
2011
- 2011-03-21 CN CN2011100673027A patent/CN102207194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813940A (en) * | 1996-05-23 | 1998-09-29 | Volkswagen Ag | Transmission clutch control arrangement |
| US6212458B1 (en) * | 1999-05-10 | 2001-04-03 | General Motors Corporation | Adaptive brake compensation for grade braking |
| US20050020403A1 (en) * | 2003-07-22 | 2005-01-27 | Toyota Jidosha Kabushiki Kaisha | Vehicle take-off control apparatus and method |
| CN101201101A (en) * | 2006-12-14 | 2008-06-18 | 比亚迪股份有限公司 | AMT vehicle gear-shift mechanism with shift point correcting function and correcting method thereof |
| CN101622476A (en) * | 2007-03-02 | 2010-01-06 | Zf腓德烈斯哈芬股份公司 | The method that is used for the power train of controller motor-car |
| CN101342901A (en) * | 2007-07-13 | 2009-01-14 | 现代自动车株式会社 | Method for controlling idle stop mode in hybrid electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 葛安林: "《车辆自动变速理论与设计》", 31 May 1993, article "电子控制机械式自动变速器", pages: 198-199 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370764A (en) * | 2014-08-29 | 2016-03-02 | 上海汽车集团股份有限公司 | Control method and device for dual-clutch automatic transmission |
| CN105370764B (en) * | 2014-08-29 | 2018-03-06 | 上海汽车集团股份有限公司 | The control method and device of double-clutch automatic gearbox |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |